Pharmaceutical product



Patented Feb; 1, 1927.

unnec- STATES; PATENT oFFl ca.

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PHARMACEUTICAL PRODUCT.

I6 Drawing. appl ication'flled October 5, 1925,. Serial No. 60,672, and in- Germany November 28', 1924.

I have found that new and therapeutically valuable antimony compounds can be obtained by treating the salts of hydro-xyqumoline sulfonic acids e. g. with,alkah or alkaline earth metals with antimony oxides e. grthe trioxide; I The-new products are generally colored powders soluble in cold and hot water. By treatmentwith asolution of alkali metal sul- 10 fide, antimony sulfide is precipitated. They have proved as be valuable} remedies for the treatment of spyrochaetoses. They are employed insolution for subcutaneous use. In order to illustrate the new invention the following example is given, the parts being" by weight p A neutral aqueoussolution of the sodium salt of S-hydrox'yquinolinedisulfonic acid (see Monatshefte fiir Chemie, Vol. X, 1889, ge 801) is heated with an excess of b(OH) After the reaction is complete it is filtered and the filtrate is poured into alcohol. A yellow powder is thus obtained. It is soluble inwater and contains about 9% antimony.

The structure of the product obtained according to the process described in the above example may be represented by the following formula in whic the antimony is linked tothe oxygen atom of the hydroxyl group in the quinoline nucleus: p

The product obtained from 8-hyd1'oxy quino1ine-5-sulfonic acid is'a whitish-yellow powder.

I claim: I

1. The process for producing antimony compounds of hydroxyquinoline sulfonic acids comprising the treatment of salts of hydroxyquinoline sulfonic acids with antimony oxidand isolating the resulting prbducts, substantially as described.

2. The process for producing antimony compounds comprising the treatment of salts of hydroxyquinoline sulfonic acids with antimony hydroxide (Sb(OH) and isolating the resulting products, substantially as described.

3. The herein described new antimony compounds obtainable from salts of hydroxyquinoline sulfonic acids and antimony oxid, said compounds being generally colored products solublein water and valuable remedies against spyrochaetoses, substantially as described. I p i 4. The herein described new antimony, compound obtainable from 8-hydroxyquinoline disult'onic acid 'salt and antimony hydroxide being a yellow powder soluble in water, containing about 9% antimony and being a valuable'remedy against spyrochaetoses, substantially as described.

In testimony my hand.

HANS HAHL.

whereof I have hereunto set 

